Melissa Moore struggles to reconcile the normal experiences of growing up with her father, Keith Hunter Jesperson, with the realization that he was also the Happy Face serial killer. And she wonders if being a psychopath could be hereditary.

Nondisclosure agreements used to be stuffy legal documents reserved for safeguarding company secrets. Now they've been in the news as part of sexual harassment coverups. What are NDAs exactly and when can you break them legally?